package org.xblackcat.sjpu.storage.connection;

import org.xblackcat.sjpu.storage.StorageException;

import java.sql.*;
import java.util.Map;
import java.util.Properties;
import java.util.concurrent.Executor;

/**
 * 17.05.2014 18:06
 *
 * @author xBlackCat
 */
public class TxSingleConnectionFactory implements IConnectionFactory {
    private final Connection con;
    private NoCloseConnection noCloseConnection;

    public TxSingleConnectionFactory(IConnectionFactory factory, int transactionIsolationLevel) throws SQLException {
        this.con = factory.getConnection();
        con.setAutoCommit(false);
        if (transactionIsolationLevel != -1) {
            con.setTransactionIsolation(transactionIsolationLevel);
        }
        noCloseConnection = new NoCloseConnection(con);
    }

    @Override
    public Connection getConnection() throws SQLException {
        return noCloseConnection;
    }

    @Override
    public void shutdown() throws StorageException {
        try {
            con.close();
        } catch (SQLException e) {
            throw new StorageException(e.getMessage(), e);
        }
    }

    /**
     * 17.05.2014 18:05
     *
     * @author xBlackCat
     */
    private static class NoCloseConnection implements Connection {
        private final Connection con;

        public NoCloseConnection(Connection con) {
            this.con = con;
        }

        @Override
        public Statement createStatement() throws SQLException {
            return con.createStatement();
        }

        @Override
        public PreparedStatement prepareStatement(String sql) throws SQLException {
            return con.prepareStatement(sql);
        }

        @Override
        public CallableStatement prepareCall(String sql) throws SQLException {
            return con.prepareCall(sql);
        }

        @Override
        public String nativeSQL(String sql) throws SQLException {
            return con.nativeSQL(sql);
        }

        @Override
        public void setAutoCommit(boolean autoCommit) throws SQLException {
            con.setAutoCommit(autoCommit);
        }

        @Override
        public boolean getAutoCommit() throws SQLException {
            return con.getAutoCommit();
        }

        @Override
        public void commit() throws SQLException {
            con.commit();
        }

        @Override
        public void rollback() throws SQLException {
            con.rollback();
        }

        @Override
        public void close() throws SQLException {
            //        con.close();
        }

        @Override
        public boolean isClosed() throws SQLException {
            return con.isClosed();
        }

        @Override
        public DatabaseMetaData getMetaData() throws SQLException {
            return con.getMetaData();
        }

        @Override
        public void setReadOnly(boolean readOnly) throws SQLException {
            con.setReadOnly(readOnly);
        }

        @Override
        public boolean isReadOnly() throws SQLException {
            return con.isReadOnly();
        }

        @Override
        public void setCatalog(String catalog) throws SQLException {
            con.setCatalog(catalog);
        }

        @Override
        public String getCatalog() throws SQLException {
            return con.getCatalog();
        }

        @Override
        public void setTransactionIsolation(int level) throws SQLException {
            con.setTransactionIsolation(level);
        }

        @Override
        public int getTransactionIsolation() throws SQLException {
            return con.getTransactionIsolation();
        }

        @Override
        public SQLWarning getWarnings() throws SQLException {
            return con.getWarnings();
        }

        @Override
        public void clearWarnings() throws SQLException {
            con.clearWarnings();
        }

        @Override
        public Statement createStatement(int resultSetType, int resultSetConcurrency) throws SQLException {
            return con.createStatement(resultSetType, resultSetConcurrency);
        }

        @Override
        public PreparedStatement prepareStatement(String sql, int resultSetType, int resultSetConcurrency) throws SQLException {
            return con.prepareStatement(sql, resultSetType, resultSetConcurrency);
        }

        @Override
        public CallableStatement prepareCall(String sql, int resultSetType, int resultSetConcurrency) throws SQLException {
            return con.prepareCall(sql, resultSetType, resultSetConcurrency);
        }

        @Override
        public Map<String, Class<?>> getTypeMap() throws SQLException {
            return con.getTypeMap();
        }

        @Override
        public void setTypeMap(Map<String, Class<?>> map) throws SQLException {
            con.setTypeMap(map);
        }

        @Override
        public void setHoldability(int holdability) throws SQLException {
            con.setHoldability(holdability);
        }

        @Override
        public int getHoldability() throws SQLException {
            return con.getHoldability();
        }

        @Override
        public Savepoint setSavepoint() throws SQLException {
            return con.setSavepoint();
        }

        @Override
        public Savepoint setSavepoint(String name) throws SQLException {
            return con.setSavepoint(name);
        }

        @Override
        public void rollback(Savepoint savepoint) throws SQLException {
            con.rollback(savepoint);
        }

        @Override
        public void releaseSavepoint(Savepoint savepoint) throws SQLException {
            con.releaseSavepoint(savepoint);
        }

        @Override
        public Statement createStatement(int resultSetType, int resultSetConcurrency, int resultSetHoldability) throws SQLException {
            return con.createStatement(resultSetType, resultSetConcurrency, resultSetHoldability);
        }

        @Override
        public PreparedStatement prepareStatement(
                String sql,
                int resultSetType,
                int resultSetConcurrency,
                int resultSetHoldability
        ) throws SQLException {
            return con.prepareStatement(sql, resultSetType, resultSetConcurrency, resultSetHoldability);
        }

        @Override
        public CallableStatement prepareCall(
                String sql,
                int resultSetType,
                int resultSetConcurrency,
                int resultSetHoldability
        ) throws SQLException {
            return con.prepareCall(sql, resultSetType, resultSetConcurrency, resultSetHoldability);
        }

        @Override
        public PreparedStatement prepareStatement(String sql, int autoGeneratedKeys) throws SQLException {
            return con.prepareStatement(sql, autoGeneratedKeys);
        }

        @Override
        public PreparedStatement prepareStatement(String sql, int[] columnIndexes) throws SQLException {
            return con.prepareStatement(sql, columnIndexes);
        }

        @Override
        public PreparedStatement prepareStatement(String sql, String[] columnNames) throws SQLException {
            return con.prepareStatement(sql, columnNames);
        }

        @Override
        public Clob createClob() throws SQLException {
            return con.createClob();
        }

        @Override
        public Blob createBlob() throws SQLException {
            return con.createBlob();
        }

        @Override
        public NClob createNClob() throws SQLException {
            return con.createNClob();
        }

        @Override
        public SQLXML createSQLXML() throws SQLException {
            return con.createSQLXML();
        }

        @Override
        public boolean isValid(int timeout) throws SQLException {
            return con.isValid(timeout);
        }

        @Override
        public void setClientInfo(String name, String value) throws SQLClientInfoException {
            con.setClientInfo(name, value);
        }

        @Override
        public void setClientInfo(Properties properties) throws SQLClientInfoException {
            con.setClientInfo(properties);
        }

        @Override
        public String getClientInfo(String name) throws SQLException {
            return con.getClientInfo(name);
        }

        @Override
        public Properties getClientInfo() throws SQLException {
            return con.getClientInfo();
        }

        @Override
        public Array createArrayOf(String typeName, Object[] elements) throws SQLException {
            return con.createArrayOf(typeName, elements);
        }

        @Override
        public Struct createStruct(String typeName, Object[] attributes) throws SQLException {
            return con.createStruct(typeName, attributes);
        }

        @Override
        public void setSchema(String schema) throws SQLException {
            con.setSchema(schema);
        }

        @Override
        public String getSchema() throws SQLException {
            return con.getSchema();
        }

        @Override
        public void abort(Executor executor) throws SQLException {
            con.abort(executor);
        }

        @Override
        public void setNetworkTimeout(Executor executor, int milliseconds) throws SQLException {
            con.setNetworkTimeout(executor, milliseconds);
        }

        @Override
        public int getNetworkTimeout() throws SQLException {
            return con.getNetworkTimeout();
        }

        @Override
        public <T> T unwrap(Class<T> iface) throws SQLException {
            return con.unwrap(iface);
        }

        @Override
        public boolean isWrapperFor(Class<?> iface) throws SQLException {
            return con.isWrapperFor(iface);
        }
    }
}
